JPS5841860B2 - Kiyoubuhaiexouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to chest drainage devices, and more particularly to disposable plastic chest drainage devices.

The 1-bottle, 2-bottle, 3-bottle, and 4-bottle chest drainage devices are assigned to the same assignee as the present invention.

No. 183,332, filed September 24, 1971.

Also, joint application No. 212. dated December 27, 1971.
．． Also included in the 075 is a 4-bottle-type disposable plastic drainage device.

Reference may be made to these specifications for a basic explanation of drainage devices.

In the past, vials or jars were provided with suitable stoppers and tube connectors for draining fluid from the pleural space.

Preformed plastic disposable drainage devices have also been used to overcome some of the drawbacks of the glass bottle type.

For example, plastic chest devices do not break, and because they are monolithically or unitarily formed, they can be easily connected to a patient.

They are also lightweight and do not separate during use.

However, such plastic drainage devices also have certain drawbacks, for example, they are
It is not possible to economically use the various devices such as bottle, 2-bottle, 3-bottle, and 4-bottle devices separately without using each as a whole device.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a drainage device which can substantially eliminate the above-mentioned drawbacks.

More particularly, it is an object of the present invention to provide an effective and economical drainage system by using a plurality of pre-contained drains that can be quickly and easily interconnected by a simple and reliable device. In order to provide a thoracic drainage device having a hollow plastic member formed therein, in order to use only one member of the desired number of chambers in the device of the present invention.
The parts can be combined separately to form a 1-bottle yy tt 2-bottle Ua 3-bottle or "4-bottle" chamber type chest drainage device.

In one aspect of the invention, the drainage device includes a plurality of preformed plastic chamber members having means for fluidly and substantially fixedly interconnecting each other. and is adapted to be coupled to the patient's cavity for draining fluid from the patient's cavity.

Another feature of the invention is that in a one-bottle device, a single chambered member with an internal channel can be used with the tube.

The above-mentioned and other features and advantages of the invention will become apparent from the following detailed description and the accompanying drawings.

Referring to the accompanying drawings, and in particular to FIGS. 1 and 2, there is shown a drainage device, generally designated by the numeral 7, having internal chambers 12, 14, 16 and 18, respectively. It includes two separate "bottle" or chamber parts 8, 9, 10 and 11 which are connected to each other to form a "four-bottle" or four-chamber chest drainage device. Form.

Chamber 12 is a fluid collection chamber for receiving and collecting fluids from the patient, chamber 14 is a submerged sealed chamber or series fluid sealed chamber for passing gases from the patient, and chamber 16 is a fluid collection chamber for receiving and collecting fluid from the patient;
is a manometer for liquid pressure control or adjustment,
Further, the chamber 18 is a liquid directly connected type manometer and a second seal chamber.

The drainage collection chamber 12 is pre-provided with a drainage inlet hole 19, which is integrated with an inlet tube coupling member 19a for receiving the tube 20 connected to the ureter tube 21. The distal portion of the ureter is adapted to be inserted into the patient's pleural space for the purpose of draining fluids and gases.

The chamber 12 is divided into three channels or columns 12a, 12b by integral walls 21a, 21b.
divided into p 12 c, which are successively grooved with drainage fluid from the patient.

The inlet hole 19 is located directly above the channel 12a, so that this channel is initially filled with drainage liquid.

Near the top end of the chamber 12 is a gas outlet 22;
The outlet is integrally coupled with an outlet tube coupling member 22a of the chamber 14, which is integrally coupled with an inlet coupling member 26a of the chamber 14, for example by a short length of tube 24 made of plastic. It is connected to the inlet hole 26 of.

The liquid seal chamber 14 has a monolithic bulkhead 25.
is pre-provided and the chamber is divided into a relatively narrow vertically extending column or channel 27 of relatively small volume and a relatively small wide column or channel 28 of relatively large volume.

The upper end of the channel 27 is fluidly connected to the inlet 26 at its upper end by an enlarged detour or liquid trap 27a, and at its lower end to the chamber 28.

A predetermined amount of liquid, e.g. water 29, is applied to the partition wall 2.
Chamber 28 so that the lower end of 5 is submerged in the water.
The lower ends of the columns 27 and 28 define a liquid reservoir for flooding.

The channel 28 is provided with an outlet aperture 30 which is integrally connected to an outlet connector or coupling member 30a, which is connected to the negative outlet connector or coupling member 30a by a tube such as a plastic tube 33 connected to the outlet connector or coupling member 30a. It is adapted to be fluidly coupled to a pressure pump or vacuum source 32.

The liquid seal chamber 14 is also provided with a gas or air inlet hole 34 near the outlet 30 at the top of the column 14 for venting fluid pressure integrally coupled with the connector 34a.

The pressure relief hole 34 is integrally connected near the top of the control manometer chamber 16 to the air intake hole 36 of the chamber 16 by a connector 36a.

The connector 34a is connected to the connector 36 of the adjustment manometer chamber 16 by means of a plastic connecting tube 37.
is combined with

The adjustment manometer chamber 16 is provided with a monolithic bulkhead 38 which divides the chamber into a relatively narrow vertically extending column or channel 4 of relatively small volume.
0 and relatively small wide columns or channels 42 of relatively large volume.

Channel 42 is fluidly connected to connector 36a and thus to vacuum outlet 30 at the upper end of liquid seal chamber 14 and pump 32 (FIG. 1).

The relatively narrow channel 40 is fluidly connected at its upper end to a vent or air intake hole 43 open to the atmosphere.

The channel 40 connects near its lower end with a relatively large chamber 42.

The lower ends of columns 40 and 42 define a liquid reservoir for water 44.

The height of the water in the liquid control manometer is such that, as is well known in the art, the maximum pressure achievable at outlet 19 is independent of the pump pressure above some predetermined value. Determine.

The second manometric seal chamber 18 is identical to the control manometric chamber 16 .

The chamber 18 is provided with a monolithic upper inlet connector 48 which is connected by a plastic tube 49 to another monolithic connector 50 at the top of the waste collection chamber 12.

The chamber 18 is defined by a monolithic bulkhead 18a.
It is divided into a relatively narrow vertical column or channel 52 and a relatively large column or channel 54.

Channel 52 has an inlet connector 48 at its top.
and is also fluidly connected to a channel 54 at the bottom.

The lower ends of channels 52 and 54 provide reservoirs for liquids such as water 58.

Channel 54 opens to the atmosphere at its upper end by a monolithic connector 56.

The chamber 18 is directly fluidly connected to the collection chamber 12 and thus to the patient's pleural cavity, and is a direct fluid manometer that is also connected to the atmosphere, thus providing a continuous and accurate measurement of the pressure within the patient's pleural cavity. Can be read.

The chamber 18 also has a second chamber in communication with the atmosphere. It also acts as a liquid seal and is connected in a bypass relationship to the liquid seal chamber 14, allowing air to be withdrawn from the pleural cavity when the patient chokes, for example, even if the pump fails and the outlet 30 Even when closed, air can be evacuated without the significant pressure required to move air through the series liquid seal chamber 14 and liquid adjustment manometer 14.

The function and advantages of the liquid seal of chamber 18 are described in more detail in the aforementioned patent application Ser. It is described in more detail inside.

As mentioned above, chambers 12, 14, 16 and 1
8 are fluidly interconnected in the described embodiment by a monolithic connector and a relatively short piece of tubing.

However, these connections may be formed, for example, by making each such tube piece as a monolithic part of the chamber member, by fitting monolithic connectors internally and externally to each other. You may.

For example, tube 24 may be integrally formed with connector 22a as a relatively flexible component of chamber 12, and connector 26a, which is integral with liquid seal chamber 14, may be integrally formed with connector 26a as a relatively flexible component of chamber 12. You can also insert it directly inside.

The integral connector and tubing elements provide a simple and effective device for manually removably connecting the chambers to each other in a fluid-coupled manner.

Although these monolithic connector and tube connections are intended to hold chamber parts 8, 9, 10 and 11 together, the device according to the invention ensures that these chambers are not in any fluid path. To prevent inadvertent opening, attachments are provided to hold the chamber together in a fixed manner.

In the embodiment being described, this is accomplished by providing a plurality of locking or clamping elements, such as those shown by connecting pins 60, extending between adjacent portions of the chamber.

The chambers 8, 9, 10 and 11 each contain 6
There are integral tabs or extensions shown at 1a, 61bt61cm and 61d, each of which has a hole 62 drilled therein.

When a pair of adjacent chamber members are in proper position and fluid communication with each other, a tab 61 on one of the chamber members will cause a tab 61 on the other adjacent chamber member. A hole 62 extends over the section or tab 61, for example as shown in FIG.
are arranged in such a way that they can receive lightning.

In FIG. 3, pin 60 is shown passing through tab 61c of adjustment manometer chamber member 10 and tab 61a of liquid seal chamber member 9.

Each pin 60 has a bulge in its axially central portion, so that when pushed into an aligned hole 62 of an adjacent chamber, the bulge engages closely with the hole 62 and thus The overlapping portions or tabs that do so will be held in close frictional engagement.

However, a pin locking member 70, such as a star-shaped lock washer made of a resilient metallic material, may also be provided on the end opposite the head of each pin. By pushing the member in, the pin is held more securely so that it does not come out.

In the embodiment described, the liquid seal chamber part 9 is fixedly connected to the collection chamber part 8 by a pin 60 at its upper end close to the inlet 26 and by a pin 60 at the bottom of both chambers. has been done.

The liquid manometer chamber part 10 is likewise connected to the liquid seal chamber part 9 by a pin 60.

Similarly, the direct reading manometer type second liquid seal chamber member 11 is also connected to the member 8 by a pair of pins 60 near both ends thereof.
is combined with

The chambers are thus secured to each other by connecting the chambers by two-piece fluidic connectors and tubes and pins 60 passing through adjacent overlapping portions or tabs on adjacent chamber members. It is also held in fluid communication for proper operation.

Of course, the chamber parts 8 to 11 can be disassembled by removing the pins and removing the fluid coupling tube elements between the parts.

In the four-bottle thoracic drainage system shown in FIGS. 1 and 2, a fluid regulating manometer 10 is configured to allow drainage from the patient's pleural cavity to flow into a collection chamber 12 and to detect air or gas from the pleural cavity. is the liquid 2 in the seal chamber 14
9 to outlet 30 and pump 32, the liquid pressure at outlet connector 30 can be brought to the desired negative pressure.

The liquid manometers 16, 18 are each provided with a scale or calibration mark 80, 85 so that the liquid level in the column can be read.

The pressure of the adjustment manometer is slightly different from the pressure of the direct-reading liquid manometer 18 due to pressure loss at the liquid seal.

In FIG. 4, only one chamber member 8 is used, and the collection chamber 12 is shown as having a droplet level mark 8.
It contains a predetermined amount of water to reach the height indicated by 2.

Connecting tube 87 connects tube 20 and connector 19
It is in liquid connection with a, and its lower end is located below the surface of the liquid.

Upper connector 22a opens to the atmosphere for allowing air or gas to escape through the liquid and into the atmosphere.

The connector 50 may be closed by a closure lid 88.

According to such a device, the liquid in the chamber 12 acts as a seal, and the drained liquid is drawn into the chamber 12 by gravity.
flow inward.

In the l-bottle apparatus shown in FIG.
The lower end is located a predetermined length below the water fill level 89, so that the drainage liquid first fills the channel 12a and then flows over the septum 21a to the next succeeding channel 12b. Fulfill.

In such a manner, the lower end of tube 87 would be located a certain length below the liquid level in channel 12a, so that once the channel is full, it would not be able to resist the flow of liquid from the patient. This provides a nearly constant repulsive force.

In prior art P1-bottle devices, the repulsive force against fluid from the pleural space increased as the collection chamber filled with fluid.

In this manner, a one-bottle device according to the present invention will provide a substantially constant, relatively small repulsive force to the flow of fluid from the patient.

In FIG. 5, a '2-bottle' arrangement is shown.

In this embodiment, collection chamber 12 and liquid seal chamber 14 are similar to the apparatus shown in FIG.
Connectors 22a, 26a and tube 24 fluidically couple each other.

In this case, the outlet 30a opens to the atmosphere, and the connector 50
and 34a are closed by a lid 88 and another lid 89, respectively.

In this case, the chamber 12 is a liquid seal chamber 14.
is connected to the chamber 12, so it is not filled with water.

Fluid is discharged by gravity into collection chamber 12 of member 8 and gas or air is discharged into liquid seal chamber 14.
and is released into the atmosphere.

In the "three-bottle" apparatus shown in FIG.

Since chambers 12, 14 and 16 are interconnected and no direct reading manometer is used, outlet 50 is closed by lid 88.

In this case, the outlet 30a is connected to the negative pressure source 3 by the tube 33.
A pressure regulating manometer connected to 2 is connected to a liquid seal to limit the pressure on the collection chamber.

The operation of this device is similar to that described above in connection with the device of FIG. 1, except for the function of member 11.

In each of these various devices, each chamber can be easily coupled in a fixed relationship to each other and in any desired fluidic connection, and each chamber can be easily coupled to each other in a fixed relationship and in any desired fluid connection.
It will be apparent that two-bottle, three-bottle and four-bottle chest drainage devices can be selectively assembled using as many chamber member(s) as necessary.

Components 10 and 11 are identical, so that a 4-bottle device such as that shown in FIG. 1 can be assembled using only three different chamber components, reducing costs. can.

The parts 10 and 11 can, for example, be made from the same mold and then be provided with different calibration marks 80,85.

To further secure the assembled chamber, a pair of tabs 90, integral with the locking member 8, extend over the surfaces on either side of the extension on the chamber member 9, and tighten the extension to secure the device. It provides further stabilization and also makes the device more rigid.

Each of the chamber parts 8, 9, 10 and 11 is constructed of plastic material, such as polypropylene. They are individually formed as separate unitary members.

Each member is preferably transparent or translucent so that the liquid contained therein is visible.

Each of them may be made by blow molding or otherwise by creating a pair of separately molded mirror image plastic elements and sealing them, for example by heat sealing equipment or other suitable equipment. It's okay.

While preferred embodiments of the invention have been described herein, it will be apparent that various changes and modifications may be made thereto without departing from the spirit of the invention or the scope of the invention as defined by the claims. It will be.

[Brief explanation of the drawing]

1 is a side view of a drainage device according to the invention combined as a "four-bottle" thoracic device; FIG. 2 is an enlarged vertical cross-sectional view of the device of FIG. 1; FIG. FIG. 4 is a side view of a "1-bottle" chest device using one of the chamber parts of FIG. 1; FIG. A side view of a "two-bottle" thoracic device using two of the chamber parts of the device shown in the figure; FIG. FIG. 3 is a side view of a 3-bottle chest device. In the figure, 8...first hollow plastic member, 9...second hollow plastic member, 10...
Third hollow plastic member, 11...Fourth hollow plastic member, 12, 14, 16, 18...
...Chamber 19...Inlet hole 22, 24
, 26, 36... Connector, 27, 28, 4
0,42,52゜54... Channel, 30.
...Gas outlet, 60...Pin, 70...
... Washer, 87 ... Passage device, 89 ...
...Level mark.

Claims (1)

[Scope of Claims] 1 Comprising a first and a second hollow plastic member and a device for locking the members and preventing them from being separated, each of the members having an internal a chamber and an integral connector device for fluidly coupling the chambers of the members to each other, the chamber of the first member receiving drainage from the patient's cavity; an inlet fluidly coupled to the cavity for receiving fluid, and the chamber of the second member is interconnected at a lower end of the chamber by a monolithic wall for receiving liquid. divided into connected first and second channels, the first channel fluidly coupled to a chamber of the first member, and the second channel fluidly coupled to a gas outlet. , whereby gas from the cavity can pass through the liquid and flow to the outlet. 2. The device according to claim 1, comprising a device for coupling a negative pressure source to the gas outlet, and a first channel and a second channel interconnected at the lower end for receiving liquid. a third hollow plastic member defining a pressure regulating manometer chamber, the third hollow plastic member having an integral wall dividing the first manometer channel and the second channel of the second member; a monolithic connector device disposed on the third member for selectively coupling the second manometer channel to the atmosphere;
A thoracic drainage device, wherein the member is adapted to limit the pressure at the gas outlet. 3. The device of claim 2, wherein the fourth chamber has a chamber divided by a monolithic wall into a first channel and a second channel interconnected at the lower end to receive liquid. further including a hollow plastic member, the first channel of the fourth member having an integral connector arrangement for coupling with the chamber of the first member, and the second channel of the fourth member being connected to the atmosphere. A chest drainage device, characterized in that it is connected to.